package com_4;

public class Calator {
    @check
    public int add(int a, int b) {
        return a + b;
    }
    @check
    public int sub(int a, int b) {
        return a - b;
    }
    @check
    public int show1(int a) {
        return a / 0;
    }
    @check
    public int show(int a, int b) {
        return a % b;
    }
}
